11809693 has 8 divisors (see below), whose sum is σ = 13536512. Its totient is φ = 10092816.

The previous prime is 11809687. The next prime is 11809703. The reversal of 11809693 is 39690811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11809693 - 2⁹ = 11809181 is a prime.

It is a super-3 number, since 3×11809693³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11809613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271 + ... + 4867.

It is an arithmetic number, because the mean of its divisors is an integer number (1692064).

Almost surely, 2^11809693 is an apocalyptic number.

It is an amenable number.

11809693 is a deficient number, since it is larger than the sum of its proper divisors (1726819).

11809693 is an equidigital number, since it uses as much as digits as its factorization.

11809693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4971.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 11809693 is about 3436.5233885426. The cubic root of 11809693 is about 227.7261318738.

The spelling of 11809693 in words is "eleven million, eight hundred nine thousand, six hundred ninety-three".